Automobile-radiator.



0. e. BOBGK. AUTOMOBILE RADIATOR.

APPLICATION FILED OUT. 16, 1911.

Patentegi Aug. 2'7, 1912.

' shown in Fig. 1. Inwardly projecting-beads- 545 .do not extend to CHARLES GEORGE BOECK, OF JACKSON, MI

GHIGAN, ASSIGNOR TO NOVELTY LIANUFAC TURING COMPANY, OF JACKSON, MICE-EGAN, A CORPORATION OF MICHIGAN.

AUTOMOBILE-RABBI! TOR.

Specification of Letters Patent.

Patented Aug. 27, 1912.

Application flledfictober 16; 191 1. Serial No. 654,929.

To all whom it may concern:

Be it known that I, CHARLES G! Boson, a citizen of the United States of America, residing at Jackson, in the county of Jackson and State of Michigan, have invented certain new and useful Improvements in Automobile-Radiators, of which the following is a specification.

My invention relates'to radiators of the type covered by Letters Patent No. 970,297, granted September 13, 1910, and consists in certain novel structural features which are hereinafter first fully described and then distinctly pointed out in the claims.

In the accom anying drawings, which illustrate a practical embodiment of my present improvement, Figure 'l'is a perspectlve view of a single radiator section or tubular clement;.Fig. 2 is an end elevation showing the relative'arrangement of the sections to form aradiator; Fig:3 is an enlarged vertical section of the structure shown in Fig. 2; Fig. 4: isa l orizontal section on line 44 of Fig. 3.

A complete radiator of the type to which my invention relates, comprises an assema blage of fiat or flattish tubular elements 1' of sheet-metal having the general form (if thin quadrangular prisms, the opposite wal '5 o'r lateral faces of said elements being staniped or formed pressions 2 thereby making internal confronting project-ions 3, which divide the elements interiorl into parallel open-ended air fines 4. The longitudinal depressions the edges of. the elements, the front and rear portions of whichare thus left flat-sided, as shown at 5, but the inclined walls of the depressions are extended outwardly beyond the planes of the flat edge portions to form exterior ribs or projections 6, which are carried acrossst-he flat edge portions of the elements, as clearly 7 are formed on the flat-sided edge portions of the elements thereby presenting short external grooves v8 in alinement with the bases of the depressions 2. l

The tubularelements are preferably each made from a continuous strip of sheet-metal, the ends thereof being joined by a soldered lap-joint.9 or other suitable seam, any wells known method-of working sheet-metalbeing employed in the formation of the depres ;'depressions of the I the fiat-sided edge 'ribs will" engage the grooves.

with longitudinal de 'ing that the Water-passage sions and projections as set forth by me in the hereinbeforc-1nentioned Letters Patent.

As stated in said patent, the radiator is formed by arranging the elements in tiers immediately adjacentone another, side by side, and joined at their edges by soldering.

The elements or flue-sections are arranged so that the longitudinal depressions 2 oi one section have a staggered relation to the adjacent sections thus i Iproviding the restricted serpentine waterfpassages 10 which extend transversely of the air-fines and are sealed jback of the radiator by the edges of the sect-ions. understood that the intervening water-pas fsages are provided by assembling the sections or'elements with the external rib or at the front and soldering of the projection 6 of one element extending into the'depression 2 of the adjoining element, as shown most clearly in Figs. 2 and 3, portions permitting the elements to be held firmly together while being soldered.

It will be noted that the ribs 6 and grooves '8 alternate symmetrically on each section so that, when the sections are assembled, the The ribs of consequently, extend the flat-sided end porsection, the result bewill have a width no greater than the distance bet-ween the base of grooves 8 and the base of a depression 2 with which they are alined. The water-passages are, consemicntly, very re stricted, compared with the transverse area of the air-fines, so that the Water willbe quickly and thoroughly cooled. Moredi er, the construction provides small external and internal projections or shoulders l1, l2, margins of the flat-edge por along the Inner t-ions 5- which interengage when the eleprojecone section will, through the plane of tion of the adjoining ments are assembled, the external tions on one element fitting in the .external depressions or recesses presented by ternal projections on the adjacent sections. The engagement of these projections, together with the engagement of the ribs 6 and grooves 8 facilitates the assembling of the elements and the holding of the same in proper assembled relation prior to permanently uniting them to form the finished radiator, displacement edgewise' being pre- It will be readilythe in- Q 1 masses ventedby the said projections anon vertical disflacement being-prevented, by the ribs an grooves.

a It will be understood, of course, that-the tion disclosed, the same having been claimed by me in the Letters Patent aforesaid. .I desire," however, to have it iinderstoodj that I do not restrict myself to theezract details of form and arrangement, illustrated, but reserve the right tosuch changes asmay be made therein within the sec of the invention as the same is defined m the appended claims. I

Having thus described my invent-iomwh'at I consider as novel and desireto secure by Letters Patentis: 1. Aradiator comprising an assemblage of prismatic tubular air-flue sections having open rectangular ends and fiat-sided end portions. said sections beingplaced'immediatcly adjacent one another and joined at their edges, the lateral faces of the sections beingi'formcd with longitudinal recesses and alternating longitudinal projections said recesses lying between the flat-sided end portions and the project-ions extending across said portions, and the adjacent sections be-- ing'so' disposed that the projections on one section extend into the recesses in adjoining sect-ions thereby providing restricted intervening serpentine water-passages.

2. Fora sheet-metal radiator structure of the character described,'a flue-section or elemcnt constructedfrom acontinuous strip of slicet'inetal in the form of a thin (uadra'ngular prism the 0' posits walls of w rich are stamped with ongitudinal indentationstorming exterior recesses and ribs and inte'-- rior project-ions dividing the flue-section intcrinrly Into a number of'open-ended airspaccs, the indentations termmatin 'short ofthe front and rear edges of the l ue-section which are left flat-sided, the ribs exand external grooves of less de th than t: depressions being formed in t e fiat-sid' edge portions in alinemcnt with the depre sions.

3. The combination of sheet-metal flu sections arranged immediately adjacent 01 another and joined at their.,edgcs, said flu sections having theform ofqnadrangulz prismsjwith fiat-sided end portions, the o posit-e sides of the sections being forms with longitudinal depressions intermedizn saidfiat-sided end portions, longitudin: ipgojections alternating with said depre: sions and extending across the flat-sided en portions and grooves in said end portions i alinement with said longitudinal depres sions, and laterally adjacent'sections'bcin, arranged with the exterior projections 01 one section engaging the grooves, in the ad oining sections and extending into the de pressions'in said sections 'wherchy restrictm serpentine water-passages are provided be tween thesections. o

fl. The combination of sheet-metal flue sections arranged immediately adjacent om another and oined at their. edges, said fluesections having the form of quadrangulai prisms with fiat-sidedend portions,- the opposite sides of the sections being formed with longitudinal depressions intermediate s'aid fiat-sided end portions, longitudinal projections alternating with said depressions and'extending across said end" ortions, grooves in the end portions in; a inement with the depressions and internal and external shoulders along the inner margins of'the, flat-sided end portions, and laterally adjacent sections having the projections on one section engaging 'the grooves and extending into the depressions of adjoining sections with the shoulders along the margins of the end portions in engagement whereby "restricted serpentine 'wate'npassages are'provided betvyeen the sections.

In testimony whereoPI affix my signat-nrc, in presence of two witnesses.

lVitne sses:

I). It; TARBELL,

tending across said fiat-sided end portions,-

DAN HAnrNnn.

' CHARLES sconesoron; 

